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Old 22nd Sep 2018, 11:02 pm   #5
Oldcodger
Nonode
 
Join Date: Oct 2014
Location: West Midlands, UK.
Posts: 2,181
Default Re: GPO TR35 No4 test meter

As said Detector no4. Preferred by older members over the newer meters for HR faults, as drawing more current it showed up voltage drops on a line faster than the higher impedance meters ( least that was the explanation I got from my old mate/mentor).
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